Lesson 4 Flashcards
What are the electrical parts of a refrigerator unit?
AC plug and cord
Lamp switch
Mullion heater/ Dew point heater
Electric motor
Connects the electrical system of the refrigerator unit to the power source
AC plug and cord
is a normal push type switch installed at the edge of the cabinet to turn on the cabinet light upon opening unit and turning it of upon closing
Lamp switch
Maintain a warm temperature in the refrigerator to avoid moisture on the refrigerator surface that can damage the cabinet
Mullion heater / dew point heater
A motor hermetically sealed inside the compressor
Electric motor
electric motor is composed of two electromagnetic windings known as
Start winding and run winding
electrical components that are capable of electrical charge
Capacitors
stabilize the flow of current for the starting or running operation of a motor compressor.
Run capacitor
Used to supply an extra charge of current for the operation of a fan motor
Fan capacitor
The unit of capacities is measured in?
FARAD
a captive component composed of one capacitor in one shell. It has only two terminals
Single can capacitor
A captive component composed of two capacitors in one shell. It has three terminals
Dual can capacitor
What are the three terminals of Dual can capacitor?
F (Fan), C (Common), and H
(Herm for compressor)
A very important part of an air-con unit usually used to drive or rotate the radial and axial fan air motion and condensation
Fan motors
An electrical device used to control the operation of the motor compressor and the speed of the fan motors of an air-con unit.
Switches
